Sure, you do enough Kobo-stuff.
It's no problem manually copying the files, and rename them. That's quick. What I would like to be able to skip is to manually have to convert to kepub and keep (unless explicitly deleting them) the files in Calibre. (The kobotouchextended driver spoiled me.
)
But I can copy the epub I want to some temp directory, and then run a script that converts them to kepub, renames them, and moves them to the dropbox directory. Fairly simple.
What I would miss is the series and collection info getting transfered. But I can live with that, for those books I really want it for, I can transfer via wire.